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    • 17. 发明授权
    • Method of molding a peripheral frame with a panel insert
    • 用面板插入件成型外围框架的方法
    • US6033613A
    • 2000-03-07
    • US333292
    • 1994-11-01
    • William M. HeynRobert W. FraserDonald J. Roth
    • William M. HeynRobert W. FraserDonald J. Roth
    • B26F1/38B29C45/14B29D1/00
    • B26F1/3846B29C45/14024B29C45/14336Y10T83/0524
    • Tooling for forming an article which includes an injection molded peripheral frame defining an opening closed by a panel insert. The panel insert is struck from sheet material and together with an associated punch or carrier cooperates with a split mold to completely define the cavity for injection molding of the article. Inasmuch as the panel insert is heat bondable to the injection molded frame and forms a portion of the walls of the cavity, it is automatically bonded to the injection molded frame. The panel insert may be peelable from the frame and include a pull tab for effecting the same. The pull tab may be formed by the same punch which cuts out the panel insert, or the pull tab may be separately formed from sheet material adjacent an intended position of a panel insert and folded into overlying relation to the intended position of the panel insert and staked to the sheet material, after which the panel insert is cut from the sheet material by a punch. The pull tab is initially connected to the sheet material along an elongated fold line, after which not all of the pull tab connected to the sheet material is removed by the punch so as to define a centrally located pull tab which is aligned with the projecting part of the punch to effect a completely sealed mold cavity utilizing the panel insert with a previously formed and folded over pull tab staked thereto.
    • 用于形成制品的模具,其包括限定由面板插入件封闭的开口的注射成型的外围框架。 面板插入物从片材中冲击并与相关联的冲头或载体一起与分开的模具配合以完全限定用于制品注射成型的空腔。 由于面板插入件可热接合到注塑框架并形成空腔的壁的一部分,所以其自动地结合到注塑框架上。 面板插入件可以从框架剥离并且包括用于实现其的拉片。 拉片可以由相同的冲头形成,该冲头切出面板插入件,或者拉片可以与邻近面板插入件的预期位置的片材单独形成,并且折叠成与面板插入件的预期位置相对的上部关系, 被放置在片状材料上,然后通过冲头从片材切割面板插入物。 拉片首先沿着细长的折叠线连接到片材,之后并不是所有与片状材料相连的拉片通过冲头去除,以便限定一个位于中心的拉片,该拉片与突出部分对准 的冲头,以利用镶嵌在其上的预先形成和折叠的拉拔片的面板插入件来实现完全密封的模腔。
    • 19. 发明授权
    • Hydrostatic nut and lead screw assembly, and method of forming said nut
    • 静压螺母和丝杠组件,以及形成所述螺母的方法
    • US5499942A
    • 1996-03-19
    • US365740
    • 1994-12-29
    • William W. Pflager
    • William W. Pflager
    • B24B19/12B24B47/20B29C70/68B29C70/78B29D1/00F16H25/24B24B47/08
    • F16H25/24B24B19/12B24B47/20B29C70/682B29C70/78B29D1/00Y10S425/058
    • A method of forming a hydrostatic nut that cooperates with a lead screw for translating a wheel head, or carriage, on a grinding machine, such as a cam grinder. A lead screw, which is externally threaded, is inserted into a cylindrical mold, which is internally threaded. The lead screw is retained therein by pressure plates that seal off opposite ends of the open bore of the mold.A continuous cavity is defined between the internal threads on the nut and the external threads on the lead screw. An epoxy resin or other castable polymer is introduced through an inlet port in the mold into the cavity. The castable polymer is allowed to cure into a rigid mass that adheres to the internal threads on the mold. The lead screw is removed, and the mold may be machined to its final configuration as a hydrostatic nut.At least one helical channel is defined in the outer surface of the rigid mass adhered to the mold. In a preferred embodiment, one helical channel is formed on the leading edge of each thread, and a second, helical channel is formed on the trailing edge of each thread. Oppositely directed helical channels are pressurized to form a thin fluid film that prevents metal to metal contact between the complementary helical threads on the nut and the lead screw. The rigid polymeric mass is structurally reinforced by the threads defined on the metal nut, so that the channels defined on the exterior surface thereof maintain their dimensions.
    • 一种形成静压螺母的方法,该静压螺母与用于将砂轮头或托架平移的研磨机例如凸轮磨床的丝杠配合。 外螺纹的导螺杆被插入到内螺纹的圆柱形模具中。 导螺杆由压板保持在其中,该压板密封模具的开孔的相对端。 在螺母上的内螺纹和导螺杆上的外螺纹之间限定连续腔。 将环氧树脂或其它浇注聚合物通过模具中的入口引入空腔。 允许浇注聚合物固化成粘附到模具上的内螺纹的刚性质量块。 导丝器被去除,并且模具可以被加工成其静态螺母的最终结构。 至少一个螺旋通道限定在粘附到模具上的刚性块的外表面中。 在优选实施例中,在每个螺纹的前缘上形成一个螺旋通道,并且在每个螺纹的后缘上形成第二螺旋通道。 相对定向的螺旋通道被加压以形成薄的流体膜,其防止螺母上的互补螺旋螺纹和丝杠之间的金属与金属接触。 刚性聚合物质在结构上由限定在金属螺母上的螺纹加强,使得限定在其外表面上的通道保持其尺寸。
    • 20. 发明授权
    • Hydrostatic nut and lead screw assembly, and method of forming said nut
    • 静压螺母和丝杠组件,以及形成所述螺母的方法
    • US5405282A
    • 1995-04-11
    • US98059
    • 1993-07-28
    • William W. Pflager
    • William W. Pflager
    • B24B19/12B24B47/20B29C70/68B29C70/78B29D1/00F16H25/24B24B47/08
    • F16H25/24B24B19/12B24B47/20B29C70/682B29C70/78B29D1/00Y10S425/058
    • A method of forming a hydrostatic nut that cooperates with a lead screw for translating a wheel head, or carriage, on a grinding machine, such as a cam grinder. A lead screw standard, or master, which is externally threaded, is inserted into a cylindrical mold, which is internally threaded. The standard is retained therein by pressure plates that seal off opposite ends of the open bore of the mold. Beads of wax, or tape, or some other rigid instrumentality, are adhered to the exterior surfaces of the helical threads on the standard, while the rest of the standard is treated with a release coating.A continuous cavity is defined between the internal threads on the nut and the external threads on the standard. An epoxy resin or other castable polymer is introduced through an inlet port in the mold into the cavity. The castable polymer is allowed to cure into a rigid mass that adheres to the internal threads on the mold except for the helical beads. The standard is removed, the mold is machined to its final configuration as a hydrostatic nut, and the wax, or tape, is removed to leave voids in the rigid cured polymer. The voids define oppositely directed helical channels that are pressurized to form a thin fluid film that prevents metal to metal contact between the complementary helical threads on the nut and lead screw. The cured polymeric mass is structurally reinforced by the threads defined on the metal nut, so that the channels defined on the exterior surface thereof maintain their dimensions.
    • 一种形成静压螺母的方法,该静压螺母与用于将砂轮头或托架平移的研磨机例如凸轮磨床的丝杠配合。 外螺纹的导螺杆标准或主轴插入内螺纹的圆柱形模具中。 该标准通过压力板保持在其中,该压板密封模具的开孔的相对端。 蜡或胶带或其他一些刚性工具的珠子粘附在标准螺旋螺纹的外表面上,而标准物的其余部分用脱模涂层处理。 在螺母上的内螺纹和标准件上的外螺纹之间限定连续腔。 将环氧树脂或其它浇注聚合物通过模具中的入口引入空腔。 允许浇注聚合物固化成刚性质量块,其粘附到模具上的内螺纹,除了螺旋珠。 移除标准品,将模具加工成其静液压螺母的最终结构,并除去蜡或胶带以留下刚性固化的聚合物中的空隙。 空隙限定相反方向的螺旋通道,其被加压以形成薄的流体膜,其防止螺母和丝杠上的互补螺旋螺纹之间的金属与金属接触。 固化的聚合物质量通过限定在金属螺母上的螺纹结构地增强,使得限定在其外表面上的通道保持其尺寸。